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package Count; use Filter::Util::Call ; use strict ; use warnings ; sub filter { my ($self) = @_ ; my ($status) ; if (($status = filter_read()) > 0 ) { s/Joe/Jim/g ; ++ $$self ; } elsif ($$self >= 0) { # EOF $_ = "print q[Made ${$self} substitutions\n] ;" ; $status = 1 ; $$self = -1 ; } $status ; } sub import { my ($self) = @_ ; my ($count) = 0 ; filter_add(\$count) ; } 1 ;
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